<template>
  <div id="login-container">
    <div class="login-box">
		<!-- 头像区域 -->
		<div class="avatar-box">
			<img src="../assets/images/avatar.jpg" alt="">
		</div>
		<!-- 表单区域 -->
        <el-form ref="loginFormRef" :model="loginFrom" :rules="loginFormRules" label-width="0" class="login-form">
            <!-- 账号 -->
            <el-form-item prop="username">
                <el-input v-model="loginFrom.username" prefix-icon="iconfont icon-user"></el-input>
            </el-form-item>
            <!-- 密码 -->
            <el-form-item prop="password">
                <el-input v-model="loginFrom.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
            </el-form-item>
            <!-- 登录重置按钮 -->
            <el-form-item class="btns">
                <el-button type="primary" @click="login">登录</el-button>
                <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>	
        </el-form>
	</div>
  </div>
</template>

<script>
export default {
  name: 'login-container',
  data() {
      return {
          /* 表单绑定对象 */
          loginFrom: {
              username: 'admin',
              password: '123456'
          },
          /* 表单输入验证规则 */
          loginFormRules: {
              username: [
                { required: true, message: '请输入登录账号', trigger: 'blur' },
                { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
              ],
              password: [
                { required: true, message: '请输入登录密码', trigger: 'blur' },
                { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' } 
              ]
          }
      }
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        if(!valid) return console.log('登录失败！');
        let {data: result} = await this.$http.post('login', this.loginFrom);
        if(result.meta.status !== 200) return this.$message.error('登录失败！');
        this.$message.success('登录成功！');
        console.log(result);
        /* 保存token   跳转页面 */
        window.sessionStorage.setItem('token', result.data.token);
        this.$router.push('/home');
      })
    }
  }
}
</script>

<style lang="less" scoped>
#login-container {
  background-color: #2b4b6b;
	height: 100%;
}

.login-box {
	width: 450px;
	height: 300px;
	background-color: #fff;
	border-radius: 3px;
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	
	.avatar-box {
		width: 130px;
		height: 130px;
		border: 1px solid #eee;
		padding: 10px;
		border-radius: 50%;
		position: absolute;
		left: 50%;
		transform: translate(-50%,-50%);
		background-color: #fff;
		box-shadow: 0 0 10px #ddd;

		img {
			width: 100%;
			height: 100%;
			border-radius: 50%;
		}
	}

    .login-form {
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 20px;
        box-sizing: border-box;

        .btns {
            display: flex;
            justify-content: flex-end;
        }
    }
}
</style>
